Definition of crumbs in English:

crumbs

exclamation

British
informal
  • Used to express dismay or surprise.

    ‘‘Crumbs,’ said Emily, ‘how embarrassing.’’
    • ‘Plus you can't lie, because all of that data's been verified - crumbs, there go the credit cards…’

Origin

Late 19th century: euphemism for Christ.

Pronunciation

crumbs

/krʌmz/